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=Quotes=
[[Tony Marsland]] mentioned Freedom, [[Papa]] and other programs participating the [[WCCC 1974]] in his handwritten notes <ref>[http://webdocs.cs.ualberta.ca/~tony/Public/Awit-Wita-ComputerChess/Wita-base/WitaNotes/wita-awit%2319-box2.pdf wita-awit#19-box2.pdf] from [http://webdocs.cs.ualberta.ca/~tony/Public/Awit-Wita-ComputerChess/Wita-base/WitaNotes/ Wita Notes] by [[Tony Marsland]]</ref> on the [[Jean Hayes Michie|Hayes]] and [[David Levy|Levy]] book <ref>[[Jean Hayes Michie|Jean E. Hayes]], [[David Levy]] ('''1976'''). ''[http://www.getcited.org/pub/101724802 The world computer chess championship, Stockholm 1974]''. University Press (Edinburgh) ISBN 0852242859</ref> :
[[Freedom]] and [[Papa]] both use [[Mobility|mobility]] as their primary term in their [[Evaluation functionFunction|evaluation functions]]. As with [[Awit|Wita]], both use the ratio of computer's moves / opponent moves. Papa and Wita also multiply by the ratio of the squares controlled and Papa goes one step further and takes the logarithm of this product to form the "[[Papa#Entropy|entropy]]" of the position. The true merit of this entropy over the product ratio was not made clear, but it does ensure that in extreme situations the evaluation remains more closely bounded.
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=Freedom vs. CHAOS=
